Notes:
There was some question, last year, about why I was finding these in an area that was almost exclusively oak, with no Redwood anywhere. This year I noticed these fruiting in very straight rows in the cemetery where I find them and finally figured out that they’re fruiting from what must be redwood lumber used to build frames around the grave sites. Some of the frames are still visible but most are buried, presumably. And earlier this year I found what I thought was a mystery mushroom (Observation 15809) which I now am fairly sure is Caulorhiza umbonata. Apparently, under some conditions, they turn quite black as they age.

Comments

Mixed collection? Well it is a sketch of two different mushrooms, but why does the darker one not look like T. rancida or the mushroom in the observation linked to? I think the sketch is pretty similar.